So what makes a great tent for a dog?
Space. Theirs. Yours. Never the twain should have to meet, unless by choice. Maybe a flooring suited to their predilection for jumping into mud puddles and rolling around in dirt — which is to say, no flooring at all. And managed proximity: Dogs making the most of the wilderness are dirty, buggy, messy things, whom we love — and who should be right next to us, with just, say, a bit of nylon between us. You didn't bring a dog along on a camping trip only to sequester him in a campground's doggy day care center; on the other hand, no need to literally lay down with fleas.
With that as the formula, here's a tent that makes the grade — and won the title of "The World's Most Dog-Friendly Tent" from Men's Journal: the Copper Hotel HV UL3 ($599) from Big Agnes, a four-plus-pound, ultra-lightweight tent with a huge, floorless vestibule made to satisfy dogs looking to plop down — on a tarp, say — after a busy day smelling things. (The floorless part is a big plus, since it's easier to clean a tarp than a tent.) A separate exit at the opposite end of the tent means humans can go about their business exiting the tent without disturbing the animals.
Sounds like the making of happy campers to us.